1. The tolerance of a Class A 50 mL transfer pipet is ±0.05 mL. A student uses an uncalibrated Class A transfer pipet to deliver a total of 300 mL of solution. What is the uncertainty in the delivered 300 mL? ± ______________ mL 2. Next, the student calibrates the pipet. The calibrated pipet delivers a mean volume of 49.994 mL with an uncertainty of ±0.005 mL. The student then uses the calibrated 50 mL pipet to deliver a total of 199.976 mL of solution. What is the uncertainty in the delivered 199.976 mL? ± _______________ mL
1. The tolerance of a Class A 50 mL transfer pipet is ±0.05 mL. A student uses an uncalibrated Class A transfer pipet to deliver a total of 300 mL of solution. What is the uncertainty in the delivered 300 mL? ± ______________ mL 2. Next, the student calibrates the pipet. The calibrated pipet delivers a mean volume of 49.994 mL with an uncertainty of ±0.005 mL. The student then uses the calibrated 50 mL pipet to deliver a total of 199.976 mL of solution. What is the uncertainty in the delivered 199.976 mL? ± _______________ mL
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. The tolerance of a Class A 50 mL transfer pipet is ±0.05 mL. A student uses an uncalibrated Class A transfer pipet to deliver a total of 300 mL of solution. What is the uncertainty in the delivered 300 mL?
± ______________ mL
2. Next, the student calibrates the pipet. The calibrated pipet delivers a mean volume of 49.994 mL with an uncertainty of ±0.005 mL. The student then uses the calibrated 50 mL pipet to deliver a total of 199.976 mL of solution. What is the uncertainty in the delivered 199.976 mL?
± _______________ mL
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Uncertainty propagation can be calculated using respective formula depends on the addition or multiplication.
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